If you have another browser you prefer, then no, "you" don't "need" Edge. But Murf is right and removing it could cause stability issues because the OS may use it and that's okay. It causes no harm and poses no risks sitting unused on our computers.

But I would advise you to keep it regardless. No browser is perfect. And there WILL be times you cannot connect to a site, or you will experience other internet issues that you cannot immediately tell if the problem is on your end, or with the site you are trying to connect to. So it is always nice to get a second opinion with another browser.

There's another reason to keep Edge. Microsoft is totally redoing it and so far, the new version looks very promising. It is being based on Chromium, the open source project Chrome and several other popular browsers are based on. That's good news as it will ensure much greater compatibility with many more websites. Also good news is it will not contain any Google services, which should help please those who (and rightfully so, IMO) don't trust Google to keep their privacy private.

There has been no official release date yet, but unofficial leaked versions are already out there. The official release is expected to be soon, so whatever reason you have now to remove edge may become moot at that time.

some links will override your default and use ie when opening new windows. it is something you have to put up with

It should be noted this is NOT due to MS or IE forcing itself on you. It is how the programmers of the program you using when you click on that link coded their program. They likely hard-coded IE or perhaps some .NET Framework call and that is what starts IE.

I see this with my spam blocker program. If I already have Pale Moon open and I click on a link in my spam blocker, a new tab in Pale Moon opens and all is good.

But if Pale Moon is not already open and I click on certain links (not all do it), IE will open. Again, that is not IE's fault. It is doing what it is told. It is my spam blocker's fault (and fortunately, on their to-do list to fix).